Loom-shuttle.



F. T.WITHEE a; R. WHITE.

LOOM SHUTTLE.

APPLICATION YILBD AUG. '7, 1907.

YPatellted 00t. 20,1908.

'A Il ATTORNEYS UNITED sTATEs PATENT oEEioE.

FRED T. WITHEE, OF SPRINGFIELD, MASSACHUSETTS, AND ROBERT WHITE, OF CLEVELAND,

` OHIO.

LOOM-SHUTTLE.

Specication of Letters Patent.

Patented oct. 2o, 190s.

Original application tiled September 28, 1906, Serial No. 336,547. Divided and this application filed August 7, 1907. serial No. 387,513.

To all whom it may concern:

Be it known that we, FRED T. WITHEE, a resident of Springfield, in the county of Hampden and State of Massachusetts, and ROBERT WHITE, a resident of Cleveland, in the county of Cuyahoga and State of Ohio, both citizens of the United States of America, have invented a new and useful Loom- Shuttle, of which the following is a speciiication, .the same being a divisional part of an application for United States Letters Patent liled by us September 28, 1906, and numbered Serial No. 336,547.

Our invention relates to improvements in shuttles, including the bobbins, for looms and for wire-cloth weaving looms in particular, in which the bearings for the rollers at one end are movable, certain peculiar holding and releasing means for the bobbin is provided, and the bobbin is constructed with an improved spring-tension device, all as hereinafter set forth.

The objects of our invention are, first, to produce a shuttle for a loom which is adapted, by reason of the automatically adjustable rollers with which it is equipped, to hug the reed while passing from one shuttle-box to the other in either direction, whereby ac curacy of movement on the part of the shuttle is maintained and all liability of deviation from its true course obviated; second, to aiford convenient means for uniting the shuttle and bobbin in such a manner that they can be separated readily; third, to furnish a construction in which the tension is the same on every bobbin, and, fourth, to

provide a shuttle and bobbin constructiony which is free from intricate and complicated parts and combinations of parts and is at the same time capable of performing the work required of it to the best advantage.

We attain these objects by the mechanism illustrated in the accompanying drawings, in which` Figure l is a front elevation of the shuttle with its bobbin complete; Fig. 2, a longitudinal vertical section through the same; Fig. 3, a longitudinal horizontal section of the shuttle, the bobbin being in plan, and, Fig. 1l, a cross-section of the shuttle showing the latch which is provided to hold the bobbin in place.

Similar figures refer to similar parts throughout the several views.

It will be understood that this shuttle is designed to be thrown or shot in the ordinary manner through the shed from one shuttle-box to the other at the ends of the slay of a loom of the ily-shuttle variety, any suitable shuttle-operating mechanism being employed for the purpose, the mechanism shown and described in the application of which this is a division being especially well adapted to operate the new shuttle.

Upon referring to the drawings it will be observed that the shell or case of the shut tle and for the spool or bobbin is mounted on rollers which have movable bearings at one end, that is, at one end of each, and that the bobbin holder is removable from such case and the bobbin itself from such holder, also that a spring-tension device is furnished for said bobbin. These features are described in detail below.

5 represents a shuttle case, and 6 a spool or bobbin. The case 5 is divided by vertical partition 7-7 into three compartments, two end compartments open at the bottom for the accommodation of rollers 8-8 and a middle compartment open in front f or the accommodation of the bobbin G and its appurtenances. A sliding bar 9 is located in the case 5 against the back of the same and there operatively held by screws 1.0-10 p assing through slots llllin said bar into threaded engagement with said back. Each roller S is mounted on a pintle 12 having pointed ends which are suitably journaled in the front wall of the compartment in ywhich said roller is located and in that part of the bar 9 which extends into such compartment.

The arrangement of parts is such that when the shuttle is shot, no matter in which direction, the rollers 8 will shift to whatever degree is necessary to steer the shuttle toward and cause it to hug the reed, thereby overcoming any tencency to leave said reed and foul the shed. If the shuttle moves to the left, the bar 9 with the back ends of the pintles 12 can shift to the right in the case 5 as far as the screws 10 will permit, the positions of the rollers, pintles, and bar Vat such a time being indicated by dotted lines in Fig. 3; and if the shuttle moves to the right, said bar with the back ends of said pintles lcan shift to the left as far as said screws will permit; the tendency always being for the rollers in the moving case to stand with the back ends of their axes behind the front ends of said axes in the direction taken by the shuttle to the end that the case carried forward on said'rollers is urged constantly by the latter toward the reed which in practice is behind or at the back side of the shuttle.

The bobbin 6 is hollow, is closed at one end, and has two pins v13 depending from the top or closed end on the inside. The combined bobbin holder and tension device for the bobbin G consists of a base-plate 11, a post 15 rising from such plate and fast thereon, said post being preferably flanged at the bottom as shown at 1G, a thimble 17 adapted to fit over the post and its flange and provided with a central pin 1S depending from the top to enter a hole therefor in the top of the post and having holes to receive the pins 13, and a spring 19 having its inner end fastened to the post at 20 and its outer end thickened at 21 in the manner usual with such springs and bearing against the wall of said thimble. A tension is put upon the thimble 17 by the spring 19, said thimble being otherwise free to revolve with its pin 18 in the post 15, and this same tension is necessarily applied or communicated to the bobbin 6 when the latter is placed over said thimble and rotatably locked thereto by the pins 13, since both the bobbin and the thimble must revolve together. The bobbin 6 is the only part which it is necessary to remove when change of bobbins is made, consequently every bobbin is subjected to the same tension as every other bobbin.

The base-plate 14 of the bobbin holder is removably held in position in the middle compartment in the case 5 by means of a lug or projection 22 extending into said compartment at one end in front of a lug or projection 23 on the adjacent end of said plate, and a latch 24 pivoted at 25 to the wall of the compartment at the opposite end. The latch engages the adj acent end of the plate 141 and is normally held in such engagement by a suitable spring 26 attached to a pin 27, 1

projecting inward from the righthand partition 7 and held in place against the upper edge of pin 28 which also projects from said partition. Upon pressing down the'front end of the latch 24 to disengage the rear end of said latch from the plate 14., the latter with tlle members including the bobbin which are supported thereby can be removed from the case, and the parts can be as easily replaced and refastened. It is necessary, of course, to remove the plate 14, as above explained, whenever the bobbin is to be changed. All that is required to change the bobbin, after taking the plate 14 from the case 5, is to slip the empty bobbin upward olif of the thimble and to place a full bobbin `over said thimble with the pins 13 in the holes therefor in the top of the thimble, it being understood that every bobbin is provided with these pins.

Notches or indentations 29 may be provided in the noses of the case 5 to facilitate the grasping and holding of the shuttle by clips or similar members of the shuttle operating mechanism with which the shuttle is used.

le reserve to ourselves the right to make such changes in the construction of our invention and in the arrangement of the parts thereof as may be said to justly fall within the scope of our claims.

That we claim as our invention, and desire to secure by Letters Patent, is-

1. A loom shuttle comprising rollers a case mounted on said rollers and provided with a single movable bearing member for both rollers.

2. A loom shuttle comprising a case, a movable bearing member in said case at one side, oppositely disposed fixed bearings, and rollers journaled in said member and in said fixed bearings.

A` loom shuttle comprising a case, a sliding bar in said case, and rollers each having one of its journals mounted in said bar and the other journal mounted in the opposite wall of the casing.

et. The combination, in a loom, of a suitable case for a bobbin holder and bobbin, a holder adapted to be received in said case and comprising a suitable support including a post and a revoluble thimble mounted thereon, a tension spring` between said post and thimble, and a bobbin arranged to lit over said thimble and to engage the same positively for rotation without lost motion.

5. The combination, in a loom shuttle, of a suitable case for a bobbin holder and bobbin, a hollow bobbin adapted to fit over a thimble, a plate, a fixed post on said plate, a rotary thimble over said post, a spring fast at one end to the post and having the other end arranged to bear on the inside of said thimsaid latch behind the pivot 25 by a ble, and pins to look said bobbin to the thml holder plate adapted to engage said lug and ble so that theywll revolve together. to be engaged by said downwardly-extend- 6. The combination, in a loom shuttle, .ing part of said latch. with a oase having a bobbn compartment FRED T. WITHEE. 5 and provided with a lug' in said compart- ROBERT WHITE.

ment at one end and with a latch in the c0111- W'tnesses: partlnent at the other end7 such latch being F. A. CUTTER, pvoted against such end of the compart- A. C. FAIRBANKS, Jnent and having a downwardly-extending J. H. SALLSMAN,

10 part at the rear end, of a removable bobbn WVM. FRANKLIN. 

